com.lowagie.text.rtf.parser.destinations.RtfDestinationNull Maven / Gradle / Ivy
/*
* $Id: RtfDestinationNull.java 3373 2008-05-12 16:21:24Z xlv $
*
* Copyright 2007 by Howard Shank ([email protected])
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999-2006 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000-2006 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the ?GNU LIBRARY GENERAL PUBLIC LICENSE?), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.rtf.parser.destinations;
import com.lowagie.text.rtf.parser.RtfParser;
import com.lowagie.text.rtf.parser.ctrlwords.RtfCtrlWordData;
/**
* RtfDestinationNull is for discarded entries. They go nowhere.
* If a control word destination is unknown or ignored, this is the destination
* that should be set.
*
* All methods return true indicating they were handled.
*
* This is a unique destination in that it is a singleton.
*
* @author Howard Shank ([email protected])
* @since 2.0.8
*/
public final class RtfDestinationNull extends RtfDestination {
private static RtfDestinationNull instance = null;
private static Object lock = new Object();
/**
* Constructs a new RtfDestinationNull.
*
* This constructor is hidden for internal use only.
*/
private RtfDestinationNull() {
super();
}
/**
* Constructs a new RtfDestinationNull.
*
* This constructor is hidden for internal use only.
*
* @param parser Unused value
*/
private RtfDestinationNull(RtfParser parser) {
super(null);
}
/**
* Get the singleton instance of RtfDestinationNull object.
*/
static public RtfDestinationNull getInstance() {
synchronized(lock)
{
if(instance == null)
instance = new RtfDestinationNull();
return instance;
}
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.parser.destinations.RtfDestination#handleOpenNewGroup()
*/
public boolean handleOpeningSubGroup() {
return true;
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.direct.RtfDestination#setDefaults()
*/
public void setToDefaults() {
}
// Interface definitions
/* (non-Javadoc)
* @see com.lowagie.text.rtf.direct.RtfDestination#closeDestination()
*/
public boolean closeDestination() {
return true;
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.direct.RtfDestination#handleGroupEnd()
*/
public boolean handleCloseGroup() {
//this.rtfParser.setTokeniserStateNormal();
return true;
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.direct.RtfDestination#handleGroupStart()
*/
public boolean handleOpenGroup() {
//this.rtfParser.setTokeniserStateSkipGroup();
return true;
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.direct.RtfDestination#handleCharacter(char[])
*/
public boolean handleCharacter(int ch) {
return true;
}
/* (non-Javadoc)
* @see com.lowagie.text.rtf.parser.destinations.RtfDestination#handleControlWord(com.lowagie.text.rtf.parser.ctrlwords.RtfCtrlWordData)
*/
public boolean handleControlWord(RtfCtrlWordData ctrlWordData) {
return true;
}
public static String getName() {
return RtfDestinationNull.class.getName();
}
public int getNewTokeniserState() {
return RtfParser.TOKENISER_SKIP_GROUP;
}
}